Mixing-machine.



' specially adapted for making solutions, such M. GARLIN, 0F MONTREAL,QUEEEO, CANADA.

BIKING-MACHINE.

Specification of Letters Eatent.

Patented Jan. 119, 1915.

Applieetion filed April 8, 1913. Serial No. 759,671.

To all whom it may concern Be it known that I, EDWARD M. (lawn, asubject of the King of Great Britain, and

resident .of the city of Montreal, in the- Province of Quebec andDominion of Canada, have ful Improvements in Mixing-Machines, of whichthe following is a full, clear, and exact description.

- This invention relates to improvements in mixing machines, and theobject is to provlde an inexpensive and durable machine which may beoperated with the greatest,

easea A further object is to provide a machine ,as solutions of sugarand water for aerated beverage factories and the like.

' A still further object is to provide a machine of this character.having the maximum agitating or mixing eflect.

swung up out Toaccomplish the above objects, I provide a boiler or othervessel having near the bottom thereof temperature controlling coils. Themixing blades are mounted on a hinged head 'sothat they may be easily ofthe mixing vessel, and are furthermore arranged to rotate in oppositedirections.

' of the device.

' mixing blades 18 are secured In the drawings which illustrate theinvention: Figure 1 is a vertical sectional view Fig. 2 is a plan view.Fig. 3 is a side elevation of one of the bearings.

Referring more particularly to the drawings, 5 designates a floor, tableor other platform supporting a boiler 6. Within the boiler, the sidesare linednear the bottom with. a pipe coil 7 through which freezing becirculated to reguor heating fluid may late the temperature of theingredients during mixing. At the top of the boiler, a I

cross piece 8 is provided connected at its ends to the platform 5 byhinges 9. A pair ofbearing frames 10 are mounted on this cross bar 8,and carry vertically 'slidable bearings 11 1n which a shaft 12 isjournaled.

The position ofthe bearings is adjusted by means of the nut and boltarrangement 13 shown in Fig. 3. Mounted on the shaft 12 are a pluralitymesh with beveled gears 15, mounted on vertically disposed spindles 16journaled in sleeves 17 secured to the cross bar 8. The to the lowerends of the spindles 16 and, are formed similarly to the screws used inpropelling vesinvented certain new and useof beveled pinions .14 whichsels. It will be seen from the drawings that these propellers are'bothpitched in the same direction, but that the pinions 14 are mountedfacing one another, so as to engage opposite sides of the gears 15 andthus rotate the spindles 16 and mixing blades in opposite directions.This arrangement produces much greater agitation and circulation of theingredients during mixing than if both screws turned in the samedirection, Obviously, an equivalent result would be .obtained byrotating both spindles in the same direction, and using oppositelypitched mixing blades. Power to drive the device is supplied to the fastand loose pulleys l9, and the bearing frames 10 are preferably steadied"by braces 20. One of the advantages of this device is that it may beeasily arranged to drive the propellers at a differ ent rate of speed bymerely raising the bearQ ings l1 and substituting larger pinions 14, orconversely substituting smaller gears 15 and slipping the .pinions 14along the shaft 12 into mesh with the smaller gears. In this way, thetwo mixing blades may be each driven at a different rate of speed.

While only two mixing blades have been shown, it is obvious that as manymore as needed may be mounted in the same way and driven from the sameshaft, or that a cross shaft may be provided driving additional blades,said cross shaft being mitergeared to the shaft 12. Such variationsclearly fall within the scope of this invention, as they involve nothingmore than multiplication of the element shown and de scribed.

In the use of the device, making a solution of sugar and water, thenecessary amounts of the ingredients are placed in the boiler 6 and areheated by steam passed through the, coils 7. Rotation of the mixingblades in opposite directions produces a circulation which promotesdissolving of the solid in the well known manner, and also prevents thesolid settling to the bottom of the boiler. The use of a steam coilwithin the boiler constitutes a very con siderable improvement over theold method of applying heat or flame externally, as it absolutelyprevents the boiler becoming burned by reason of a coating of solidwhich prevents access of the fluid to the boiler. When the mixingoperation is completed the-cross bar 8 is tilted on its hinges, and thusdraws the mixing blades up out of the for example in boiler, so thatboth they and the boiler may be cleaned with the greatest ease. If thedevice is used for makingchemical com- 'ounds or the like which must bemixed at ow temperatures, cold gas or brine may be circulated throughthe coil 7 as desired.

Having thus described my invention,

what I claim is In a mixing device, a mixing vessel, a temperatureregulating coil in the lower portion of said vessel, a platformsupporting the vessel, a cross bar above the vessel connnected to saidplatform, a shaft revolubly mounted on said cross bar, sleeves securedto said crossbar,-'vertically disposed spindles journaled in saidsleeves, mixing being pivotally mountedwhereby the tilting of said boxresults in a correspondingmove ment of said shaft, sleeves, spindles and1 blades. a

In witness whereof I have hereunto set my hand in the presence of twowitnesses.

} EDWARD M; GARLIN.

Witnesses: I

' STUART R. W.'ALLEN, M. MORELAND;

